Method for operating wired and wireless phone services interconnectively

ABSTRACT

A method for operating wired and wireless phone services interconnectively, includes: receiving a subscriber registration application for wired and wireless services from an arbitrary extension subscriber; performing wired and wireless service registrations in each of the extension subscribers by endowing at least one of the wired terminals and public/private mobile communication terminals with a wired phone number in accordance with the subscriber registration application; making a call to the wired terminal corresponding to the corresponding wired phone number in the case that an arbitrary wired phone number is called, and making a call to the corresponding public/private mobile communication terminal through a mobile communication network in the case that there is the public/private mobile communication terminal to be called simultaneously interconnectively to the wired phone number; and performing a billing according to a usage of the wired and wireless services in each of the extension subscribers. Therefore, a general wired subscriber is provided with the wired phone service and a service of portability through the wireless terminal, and a subscriber&#39;s accounting burden can be reduced.

CROSS REFERENCE TO RELATED APPLICATION

This application relates to two U.S. patent applications, entitledSYSTEM FOR INTERCONNECTING WIRED AND WIRELESS PHONE SERVICES AND METHODFOR PROCESSING CALL, and entitled METHOD FOR INTERCONNECTING OF SYSTEMFOR INTERCONNECTING WIRED AND WIRELESS PHONE SERVICES, which areconcurrently being submitted with this application to the U.S. Patent &Trademark Office, and which are based on Korean patent applicationsentitled SYSTEM FOR INTERCONNECTING WIRED AND WIRELESS PHONE SERVICESAND METHOD FOR PROCESSING CALL earlier filed in the Korean IntellectualProperty Office on 12 Feb. 2003 and there duly assigned Serial No.2003-8933, entitled METHOD FOR INTER CONNECTING OF SYSTEM FORINTERCONNECTING WIRED AND WIRELESS PHONE SERVICES earlier filed in theKorean Intellectual Property Office on 12 Feb. 2003 and there dulyassigned Serial No. 2003-8935, and entitled METHOD FOR OPERATING WIREDAND WIRELESS PHONE SERVICES INTERCONNECTIVELY earlier filed in theKorean Intellectual Property Office on 12 Feb. 2003 and there dulyassigned Serial No. 2003-8936. Each of the above-cited applications isincorporated herein by reference in its entirety.

CLAIM OF PRIORITY

This application makes reference to, incorporates the same herein, andclaims all benefits accruing under 35 U.S.C. §119 from applications forSYSTEM FOR INTERCONNECTING WIRED AND WIRELESS PHONE SER VICES AND METHODFOR PROCESSING CALL earlier filed in the Korean Intellectual PropertyOffice on 12 Feb. 2003 and there duly assigned Serial No. 2003-8933, forMETHOD FOR INTERCONNECTING OF SYSTEM FOR INTERCONNECTING WIRED ANDWIRELESS PHONE SER VICES earlier filed in the Korean IntellectualProperty Office on 12 Feb. 2003 and there duly assigned Serial No.2003-8935, and for METHOD FOR OPERATING WIRED AND WIRELESS PHONESERVICES INTER CONNECTIVELY earlier filed in the Korean IntellectualProperty Office on 12 Feb. 2003 and there duly assigned Serial No.2003-8936.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a system for interconnecting servicesof wired and wireless phones and, more particularly, to a method foroperating services of wired and wireless phones interconnectivelywherein a subscriber using a wired phone service is provided withportability.

2. Description of the Related Art

Generally, a conventional public communication network can be dividedinto a wired phone service network and a mobile communication phoneservice network. The wired phone service is provided with the aid of apublic switched telephone network (PSTN), and a wired phone terminal isconnected to a telephone station using a telephone line. In the case ofthe wired phone service as described above, portability cannot beprovided since the wired phone terminal is connected to the telephonestation using the telephone line. Of course, even though a wirelessphone performing a wireless communication with a main body of the wiredphone terminal using a 900 MHz (megahertz) wireless bandwidth is beingused, there is a problem that its portability is largely limitedcompared with the mobile communication terminal using the mobilecommunication service.

On the other hand, the mobile communication service is provided with themobility using a Public Land Mobile Network (referred to as ‘PLMN’,hereinafter).

The PLMN includes a Mobile Switching Center (referred to as ‘MSC’,hereinafter) which takes charge of a mobile communication service in anarbitrary area, a Base Station Controller (referred to as ‘BSC’,hereinafter), a Base station Transceiver Subsystem (referred to as‘BTS’, hereinafter), and a HLR/VLR (Home Location Register/VisitorLocation Register). The CDMA (Code Division Multiple Access)collectively indicates wireless environments which take charge of mobilecommunication services in another district.

The MSC performs connection and control of a plurality of BSCs connectedto the MSC to other MSCs in the PSTN or PLMN.

The BSC performs functions of wireless link control and handoff, and theBTS performs functions of constructing a wireless communication pathtogether with its communication service area, that is, a wirelessterminal included in its cell area and managing a wireless resource.

In the HLR/VLR, the HLR performs functions of subscriber locationregistration and a database for storing subscriber information, and theVLR is a database which temporarily stores information of an MS existingin a cell area of which a corresponding MSC among a plurality of MSCstakes charge. When the MS moves to a cell area where other MSCs manage,information stored in the corresponding VLR is removed.

Even in the case of the mobile communication phone service using thePLMN, it does not interconnectively operate with a wired phone terminalusing the public switching telephone network so that there occurs aproblem that each service operates independently and does not haveinterrelationship.

On the other hand, even though the mobile communication service can begenerally serviced everywhere without being restricted to an area suchas premises, that service can be provided by only using the mobilecommunication service system and a wireless communication cannot beprovided without special billing in an established area.

That is, in order that a wired phone service terminal using a wiredphone service communicates with a mobile communication terminal of themobile communication service subscriber, a method was used, where eachterminal is connected to the PSTN through each exchange and connects acall to the other terminal.

Here, the PSTN includes the PLMN and PSTN. Accordingly, there was aninconvenience that an accounting was charged even when a wiredcommunication subscriber and a mobile communication service subscriberwere communicating in the same building or apartment complex.

Furthermore, in the case that a subscriber is simultaneously providedwith wired phone and mobile communication services, there was a problemthat the communication service fare was burdensome since the subscriberhas to pay for in each of communication fares.

Furthermore, in the case that a subscriber is simultaneously providedwith wired phone and mobile communication services, and other partyknows one number of the two phone numbers and makes a call to thecorresponding terminal, there was an inconvenience that a communicationconnection could not be achieved when the subscriber could not respondto the call with the corresponding terminal even though the subscriberhad another terminal.

Of course, when a call for an arbitrary terminal is made, the call canbe transferred to another terminal using a call terminating service.However, there was a problem that the service can be provided when ithas been previously established, and only the terminal to which the callterminating service has been assigned is called when the service hasbeen assigned.

SUMMARY OF THE INVENTION

It is, therefore, an object oft he present invention to provide a methodfor operating services of wired and wireless phones interconnectivelywherein a wired phone service subscriber is provided with portability.

It is another object of the present invention to provide a method foroperating services of wired and wireless phones interconnectivelywherein a billing burden due to a dual accounting can be reduced when asubscriber simultaneously uses wired phone and mobile communicationservices.

It is yet another object of the present invention to provide a methodfor operating services of wired and wireless phones interconnectivelywherein, when a subscriber simultaneously uses wired phone and mobilecommunication services and other party makes a call to one of the twophones, the subscriber can respond to the call with both terminals.

It is another object of the present invention to provide a method foroperating services of wired and wireless phones interconnectively andhaving, in the case that a subscriber is subscribed in a wired phoneservice using a wired and wireless interconnecting apparatus,portability in the wired phone service, when the wired phone terminal iscalled, the call can be simultaneously terminated in a private mobilecommunication network operated by a wired and wireless interconnectingapparatus through an existing wired phone service and an assignedwireless terminal.

It is still another object of the present invention to provide foroperating services of wired and wireless phones interconnectively, as avirtual wired phone number in a form of a general wired phone servicephone number is operated, where the possibility to receive a telephonecalled by an external subscriber using a wired phone number through auser's wireless terminal, and as a caller ID is transmitted as a virtualwired phone number when the external subscriber is called, an effect canbe obtained that the user has a wired phone terminal in view of theexternal subscriber on the state that the wired phone terminal is notinstalled, and, when the external subscriber makes a call to asubscriber's wireless terminal, the phone service can be providedaccording to an accounting rate of the wired phone service.

It is another object of the present invention to provide a method foroperating services of wired and wireless phones interconnectively, evenwhen a subscriber simultaneously uses the wired phone and wireless phoneservices, an internal subscriber may not be charged so that a burden dueto a dual charge can be reduced.

It is another object of the present invention to provide a method foroperating services of wired and wireless phones interconnectively,including a subscriber using a wired phone service being provided withportability, where the method is easy to implement.

It is yet another object of the present invention to provide a methodfor operating services of wired and wireless phones interconnectively,including a subscriber using a wired phone service being provided withportability, where the method is cost effective.

It is still another object of the present invention to provide a methodfor operating services of wired and wireless phones interconnectively,including a subscriber using a wired phone service being provided withportability, where the method is more efficient.

According to another aspect of the present invention, there is provideda method for operating services of wired and wireless phonesinterconnectively, the method including: receiving a subscriberregistration application for wired and wireless services from anarbitrary extension subscriber; performing wired and wireless serviceregistrations in each oft he extension subscribers by endowing at leastone of the wired terminals and public/private mobile communicationterminals with wired phone number in accordance with the subscriberregistration application; making a call to the wired terminalcorresponding to the corresponding wired phone number in the case thatan arbitrary wired phone number is called, and making a call to thecorresponding public/private mobile communication terminal in the casethat there is public/private mobile communication terminal to be calledsimultaneously interconnectively to the wired phone number; andperforming an accounting according to a usage of the wired and wirelessservices in each of the extension subscribers.

BRIEF DESCRIPTION OF THE DRAWINGS

A more complete appreciation of the invention, and many of the attendantadvantages thereof, will be readily apparent as the same becomes betterunderstood by reference to the following detailed description whenconsidered in conjunction with the accompanying drawings in which likereference symbols indicate the same or similar components, wherein:

FIG. 1 is a concept diagram for explaining a wired phone service and amobile communication phone service in the art;

FIG. 2 is a network block diagram for explaining a concept of a systemfor interconnecting wired phone and wireless phone services inaccordance with an embodiment of the present invention;

FIG. 3 is a system block diagram for explaining a concept oft he systemfor interconnecting the wired and wireless phone services in accordancewith an embodiment shown in FIG. 2;

FIG. 4 is a diagram showing a construction example of a database storinginformation indicating whether each phone number is a virtual phonenumber, and information indicating whether each phone number isregistered in the multiple terminating services;

FIG. 5 is a diagram showing a construction example of a database storinginformation of a wireless terminal and information of a virtual phonenumber with which the wireless terminal is endowed;

FIG. 6 is a diagram showing a process in which a wired phone and awireless terminal are simultaneously called when making a call to thewired phone in the system for interconnecting the wired and wirelessphone services shown in FIG. 3;

FIG. 7 is a diagram showing a process in which a wireless terminalsubscriber makes a call to an external subscriber;

FIG. 8 is a diagram showing a process in which a wireless terminalsubscriber makes a call to an internal subscriber;

FIG. 9 is a flow chart in which the wireless terminal subscriber makes acall to the external subscriber or the internal subscriber in FIGS. 7and 8;

FIG. 10 is a diagram showing a process in which an incoming call isre-routed when the mobile zone has nothing;

FIG. 11 is a flow chart of a process in which an incoming call isre-routed when a mobile zone has nothing;

FIG. 12 is a system block diagram for explaining a concept of a systemfor interconnecting wired and wireless phone services in accordance withanother embodiment of a wired and wireless interconnecting apparatusshown in FIG. 2;

FIG. 13 is a network flow chart showing a process in which a wired phoneand a wireless terminal are simultaneously called when a wired phone iscalled;

FIG. 14 is a flow chart in which the wired phone and wireless terminalare simultaneously called when the wired phone is called in FIG. 13;

FIG. 15 is a diagram showing a process of making a call to an externalsubscriber by a wireless terminal subscriber;

FIG. 16 is a diagram showing a process of making a call to an internalsubscriber by a wireless terminal subscriber;

FIG. 17 is a flow chart showing a process of making a call to theexternal subscriber or internal subscriber by a wireless terminalsubscriber in FIGS. 15 and 16;

FIG. 18 is a diagram showing a process of re-routing an incoming callwhen a mobile zone has nothing;

FIG. 19 is a flow chart showing a process of re-routing an incoming callwhen the mobile zone has nothing in FIG. 18;

FIG. 20 is a system block diagram for explaining a concept of a systemfor interconnecting wired and wireless phone services in accordance withyet another embodiment of the wired and wireless interconnectingapparatus shown in FIG. 2;

FIG. 21 is a diagram showing a process in which a wired phone and awireless terminal are simultaneously called when a wired phone iscalled;

FIG. 22 is a flow chart showing a process in which wired phone andwireless terminals are simultaneously called when the wired phone iscalled in FIG. 21;

FIG. 23 is a network flow chart showing a process in which a wirelessterminal subscriber makes a call to an external subscriber;

FIG. 24 is a network flow chart showing a process in which a wirelessterminal subscriber makes a call to an internal subscriber;

FIG. 25 is a flow chart in which the wireless terminal subscriber makesa call to the external subscriber or internal subscriber in FIGS. 23 and24;

FIG. 26 is a network flow chart showing a process in which an incomingcall is re-routed when a mobile zone has nothing;

FIG. 27 is a flow chart showing a process in which the incoming call isre-routed when the mobile zone has nothing in FIG. 26; and

FIG. 28 shows an example of a computer including a computer-readablemedium having computer-executable instructions for performing atechnique of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Turning now to the drawings, FIG. 1 is a concept diagram for explaininga wired phone service and a mobile communication phone service in theart. Referring to FIG. 1, the wired phone service is provided with theaid of a public switched telephone network (PSTN) 10, and a wired phoneterminal 80 is connected to a telephone station 70 using a telephoneline.

In the case of the wired phone service as described above, portabilitycannot be provided since the wired phone terminal 80 is connected to thetelephone station 70 using the telephone line.

Of course, even though a wireless phone performing a wirelesscommunication with a main body of the wired phone terminal using a 900MHz wireless bandwidth is being used, there is a problem that itsportability is largely limited compared with the mobile communicationterminal using the mobile communication service.

On the other hand, the mobile communication service is provided with themobility using a Public Land Mobile Network (referred to as ‘PLMN’,hereinafter).

The PLMN includes a Mobile Switching Center (referred to as ‘MSC’,hereinafter) 30 which takes charge of a mobile communication service inan arbitrary area, a Base Station Controller (referred to as ‘BSC’,hereinafter) 40, a Base station Transceiver Subsystem (referred to as‘BTS’, hereinafter) 50, and a HLR/VLR (Home Location Register/VisitorLocation Register) (not shown). In the drawing, the CDMA 20 collectivelyindicates wireless environments which take charge of mobilecommunication services in another district.

The MSC 30 performs connection and control of a plurality of BSCs 40connected to the MSC 30 to other MSCs (not shown) in the PSTN 10 or PLMN20.

The BSC 40 performs functions of wireless link control and handoff, andthe BTS 50 performs functions of constructing a wireless communicationpath together with its communication service area, that is, a wirelessterminal 60 included in its cell area and managing a wireless resource.

In the HLR/VLR (not shown), the HLR performs functions of subscriberlocation registration and a database for storing subscriber information,and the VLR is a database which temporarily stores information of an MSexisting in a cell area of which a corresponding MSC among a pluralityof MSCs takes charge. When the MS moves to a cell area where other MSCsmanage, information stored in the corresponding VLR is removed.

Even in the case of the mobile communication phone service using thePLMN, it does not interconnectively operate with a wired phone terminal80 using the public switching telephone network 10 so that there occursa problem that each service operates independently and does not haveinterrelationship.

The present invention will now be described more fully hereinafter withreference to the accompanying drawings, in which preferred embodimentsof the invention are shown. This invention may, however, be embodied indifferent forms and should not be construed as limited to theembodiments set forth herein. Rather, these embodiments are provided sothat this disclosure will be thorough and complete, and will fullyconvey the scope of the invention to those skilled in the art. In thedrawings, the thickness of layers and regions are exaggerated forclarity. Like numbers refer to like elements throughout thespecification.

A mobile phone using a mobile communication network herein means aconcept opposite to a wired phone service terminal using a wired phoneservice, which is used as a wireless phone for convenience. Accordingly,the term “wireless terminal” is to be restricted to the mobile phone.

FIG. 2 is a network block diagram for explaining a concept of a systemfor interconnecting wired phone and wireless phone services inaccordance with an embodiment oft he present invention.

Referring to FIG. 2, the system for interconnecting wired phone andwireless phone services in accordance with an embodiment of the presentinvention includes a wired and wireless interconnecting apparatus 100which is connected to a PSTN 10 and a BSC 40 of a public mobilecommunication network, and provides a subscriber who is registered for aservice with a wired phone service and a public/private mobilecommunication service, a private BTS (referred to as ‘pBTS’,hereinafter) 210 which is connected to the wired and wirelessinterconnecting apparatus 100 and provides a wireless environment forthe private mobile communication service in its communication area,wireless terminals 220, 240 and 260 for providing a public/privatemobile communication service through the pBTS 210, and wired phoneservice terminals 230, 250 and 270 for receiving the wired phoneservice.

The wired and wireless interconnecting apparatus 100 provides the wiredphone service terminals 230, 250 and 270 connected to the apparatus 100through a telephone line with a wired phone service, and the wirelessterminals 220, 240 and 260 which were registered in the private mobilecommunication service with the public/private mobile communicationservice through the pBTS 210. Of course, a general wireless terminal(not shown) which was not registered in the private mobile communicationservice is also provided with the public mobile communication service.Also, a wired and wireless interconnecting service for interconnectingthe wired phone service and mobile communication service is performed.

The wired and wireless interconnecting apparatus 100 includes a functionof a wired telephone station for performing the wired phone service.That is, the apparatus 100 includes a switching apparatus (not shown)for providing the wired phone service so as to endow a subscriber whowas registered in the wired phone service with an individual phone (forexample, 02-XXX-YYYY), and provides the wired phone service through atelephone line connected to the wired phone service terminals 230, 250and 270 installed in for example a subscriber's house or office.

The wired phone service, for example, corresponds to a general wiredphone service, which is provided to a subscriber through a telephonestation by Korea Telecommunication Corporation, which also includesvarious supplementary services of an Internet service such as a basicoutgoing service and incoming service.

Also, the wired phone service corresponds to an xDSL (x DigitalSubscriber Line) subscriber circuit service recently spread abruptly.

Accordingly, the wired and wireless interconnecting apparatus 100 may bedesirably embodied by interconnecting with a conventional exchangeinstalled in a telephone station, embodied by improving an exchangeinstalled in the telephone station, or embodied in a private switchingnetwork having a private exchange.

The wired phone service terminal which can be provided with the wiredphone service from the wired and wireless interconnecting apparatus 100may be general wired phones 230 and 250, and may correspond to apersonal computer 270 and various equipment (not shown) for a homenetwork. The general wired phones 230 and 250 may include a main bodyconnected through a telephone line and a mobile terminal using a signalwith a frequency of 800 MHz (megahertz).

On the other hand, the wired and wireless interconnecting apparatus 100operates a private mobile communication network in a limitedcommunication area 200.

Here, the private mobile communication network means a mobilecommunication service for providing its subscriber with a good qualityof service in a restricted area in which its base station can besupported by installing a limited number of base stations in anarbitrary area, which is generally used for the purpose ofdiscriminating it from the mobile communication network which isoperated all over the country by various mobile communication serviceproviders (for example, 01X in Korea).

Accordingly, an arbitrary exchange provider and mobile communicationapparatus provider may interconnectedly provide such a service. Inaddition, a service provider having an existing wired phone network (forexample, KTC in Korea) can also install the mobile communicationapparatus and embody such a service.

In order to perform the service described above, the wired and wirelessinterconnecting apparatus 100 includes an apparatus (not shown) for themobile communication service and endows a subscriber who is registeredin the mobile communication phone service with a Mobile IdentifierNumber (MIN) (for example, 02-CCC-DDDD), and provides wireless terminals220, 240 and 260 placed in its private communication area with a mobilecommunication phone service through the pBTS 210.

Of course, since the wireless terminals 220, 240 and 260 which areregistered in the mobile communication service of the wired and wirelessinterconnecting apparatus 100 are registered in a service of the publicmobile communication network and provided with a mobile communicationservice which uses a general public mobile communication network, theterminals are endowed with separate mobile communication terminal phonenumbers (MINs) (for example, 016-AAA-BBBB).

At this time, the separate phone number with which the wired andwireless interconnecting apparatus 100 endows the mobile terminalregistered in the mobile communication service uses a wired phone numberformat (for example, 02-CCC-DDDD). The reason why the individual phonenumber uses the wired phone number format is that, when an externalsubscriber using the wired phone service makes a call for acorresponding subscriber by way of the PSTN 10, the external subscriberis to be regarded as a general wired phone service subscriber.Accordingly, the external subscriber can make a call to thecorresponding subscriber as if he/she makes a call to a general wiredphone service subscriber, and the fare (or rate) is also adjusted as ifthe call is made to the general wired phone service subscriber.Accordingly, such a phone number is called a virtual phone number. Thevirtual phone number is a phone number whose format is the general wiredphone format, which is not a phone number connected to an arbitrarywired phone terminal through a phone line but is a phone numbergenerated in a software scheme in the wired and wireless interconnectingapparatus 100.

Accordingly, the wired and wireless interconnecting apparatus 100 canhave three kinds of subscribers in large part.

Firstly, there is a subscriber who uses only a wired phone service. Sucha subscriber is endowed with an arbitrary wired phone number from thewired and wireless interconnecting apparatus 100 and uses the wiredphone service by connecting the wired terminal to a telephone lineinstalled in his/her house.

Next, there is a subscriber who uses only a mobile communicationservice. Such a subscriber is simultaneously registered in a publicmobile communication network. Accordingly, the subscriber is endowedwith two phone numbers. One is a phone number which is endowed in apublic mobile communication network, and the other is a phone numberwhich is endowed in the wired and wireless interconnecting apparatus100. The wired and wireless interconnecting apparatus 100 storesinformation for a phone number with which the apparatus 100 has endowedfor the corresponding subscriber and a phone number which was endowed bythe mobile communication service provider.

Finally, there is a subscriber who uses the wired phone service and themobile communication service simultaneously. In this case, thesubscriber is endowed with an arbitrary wired phone number from thewired and wireless interconnecting apparatus 100 and uses the wiredphone service by connecting the wired terminal to the telephone lineinstalled in his/her house, and also uses the mobile communicationservice using the wired terminal. Accordingly, this subscriber isendowed with three phone numbers. One of them is a wired phone numberwhich is endowed in the wired terminal, another number is a phone numberwhich is endowed for the wireless terminal in the public mobilecommunication network, and yet another number is a virtual phone numberwhich is endowed to the wireless terminal in the wired and wirelessinterconnecting apparatus 100. Accordingly, the wired and wirelessinterconnecting apparatus 100 stores information of the three phonenumbers for the corresponding subscriber in a database.

The wired and wireless interconnecting apparatus 100 can provide eachsubscriber with a discriminated service.

The subscriber who uses only the general wired phone service is providedwith an outgoing/incoming service by the general wired phone servicethrough the telephone line.

In the case that the subscriber who uses only the mobile communicationservice is requested an outgoing call through the wireless terminal, asthe call ID (identification) is coming on the MIN (016-AAA-BBBB) whichis endowed with only the public mobile communication from thecorresponding wireless terminal, the MIN is transformed into the virtualphone number (02-CCC-DDDD) and it transmits the transformed caller IDthrough the PSTN 10. Accordingly, the external subscriber receives thecaller ID information for the virtual phone number with respect to thecorresponding call.

The subscriber who uses the wired phone service and the mobilecommunication service can be provided with a multiple terminatingfunction. The multiple terminating function is a function in which aring signal is transferred to the wired phone service terminal andwireless terminal simultaneously.

That is, in the case that a phone number of the wired phone serviceterminal (02-XXX-YYYY) is called externally, the ring signal istransmitted to the wired phone terminal corresponding to the wired phonenumber through the telephone line, and a virtual phone number which isregistered in a subscriber having the corresponding wired phone numberis searched for and the corresponding wireless terminal is calledthrough the pBST 210. Also, in the case that there is no response fromthe corresponding wireless terminal even though the correspondingwireless terminal has been called through the pBST 210, it is determinedthat the corresponding wireless terminal is not in a privatecommunication service area, and the corresponding wireless terminal iscalled through the BTS 50 of the public mobile communication network byway of the public mobile communication network.

In this case, the wired and wireless interconnecting apparatus 100 hasto have a database for each phone number. For example, the apparatus 100has to have a database for whether a multiple terminating function isestablished with respect to an arbitrary phone number, a virtual phonenumber for each corresponding wired phone number in the case that themultiple terminating function was established, and a virtual phonenumber for each phone number of the public mobile communication network.

In the case that there is a call connection request from an arbitraryextension subscriber for an extension subscriber or an externalsubscriber, or the extension subscriber is called from an arbitraryexternal subscriber, a corresponding call connection service can beproceeded.

That is, when the wireless terminals 220, 240 and 260 are registered forusage in the wired and wireless interconnecting apparatus 100 in orderto receive a mobile communication service, the wired and wirelessinterconnecting apparatus 100 provides the wireless terminals 220, 240and 260 with the mobile communication service through the pBTS 210.

The wired and wireless interconnecting apparatus 100 performs a wiredcommunication service with the PSTN 10. As an example, when a wirelessterminal which is registered in the wired and wireless interconnectingapparatus 100 wishes to communicate with a wireless terminal (not shown)which is not registered in the wired and wireless interconnectingapparatus 100, the wired and wireless interconnecting apparatus 100 isconnected to a public mobile communication network by way of the PSTN 10and establishes a communication path to the corresponding wirelessterminal to make a speech.

The wired and wireless interconnecting apparatus 100 establishes thecommunication path to the public network subscriber through the PSTN 10to make the communication when the service registered wireless terminals220, 240 and 260 wish to communicate with not the extension linesubscriber but the public network subscriber 11.

On the other hand, when the wireless terminals 220, 240 and 260 whichare registered for usage of the private mobile communication service inthe wired and wireless interconnecting apparatus 100 within acommunication area (referred to as a mobile zone, hereinafter) of thepBTS 210 requests wireless communication path establishment, the pBTS210 constructs the wireless communication path and manages wirelessresources so that it provides a public/private mobile communicationservice.

Furthermore, as to a wireless terminal which was not registered in theprivate mobile communication service, a public mobile communicationservice is provided through the public mobile communication network.

Also, the wireless terminals 220, 240 and 260 are provided with a speechservice with other wireless terminals 220, 240 and 260 which areregistered for usage of the private mobile communication service or thewired phone service terminals 230, 250 and 270 through the wired andwireless interconnecting apparatus 100.

That is, in the case that the wireless terminals 220, 240 and 260 whichare registered for usage of the mobile communication service in thewired and wireless interconnecting apparatus 100 requests the wirelesscommunication path establishment, the pBTS 210 establishes a wirelesscommunication path to make a speech, and in the case that a wirelessterminal (not shown) which is not registered for usage of the privatemobile communication service in the wired and wireless interconnectingapparatus 100 requests the wireless communication path establishment,the pBTS 210 makes it possible to use the public mobile communicationnetwork through the BSC 40.

For a service operation of the system for interconnecting the wired andwireless constructed as described above, the following process isneeded.

First of all, a subscriber registration application for the wired andwireless service is received from an arbitrary extension subscriber.Information requested when the subscriber registration is applied mayinclude personal affair information for the subscriber, settlementinformation, a telephone number of a wired terminal, an individualtelephone number of the mobile communication terminal, and a virtualwired telephone number of the mobile communication terminal. Here, thepersonal affair information includes a name, an address and anidentification number.

According to the subscriber registration application, one or more wiredterminals and public/private mobile communication terminals are endowedwith wired phone numbers and the wired and wireless serviceregistrations are performed in each of the extension subscribers.

When the wired and wireless services are registered, a process isperformed wherein a wired phone number with which a wired terminalconstructing the extension network is endowed, a wired phone number withwhich public/private mobile communication terminals are endowed, and themobile identifier number (MIN) with which the public/private mobilecommunication terminal is endowed from the public mobile communicationnetwork are registered as extension subscriber information in thedatabase.

Next, a process is performed wherein first identification informationindicating whether an arbitrary wired phone number is a wired phonenumber connected to a terminal or not, second identification informationindicating whether the wired phone number uses a simultaneousterminating service or not, and wired phone numbers of public/privatemobile communication terminals which are called by a simultaneousterminating function are registered in a database. After finishing theregistration process, in the case that an arbitrary wired phone numberis called, a wired terminal corresponding to the corresponding wiredphone number is called and interconnected to the wired phone number sothat, in the case that there are public/private mobile communicationterminals which are called simultaneously, the correspondingpublic/private mobile communication terminals are called through themobile communication network. A process to charge fares according to thewired and wireless services in each of the extension subscribers can beperformed. In the case that the private mobile communication network isused when the charge is performed, the extension billing rate may beapplied, and in the case that the public mobile communication network isused, external line billing rate may be applied.

FIG. 3 is a system block diagram for explaining a concept of the systemfor interconnecting the wired and wireless phone services in accordancewith an embodiment of shown in FIG. 2.

Referring to FIG. 3, the wired and wireless interconnecting apparatus100 includes a wired exchange 111, a mobile gateway 112, and a pBSC 113.

The wired exchange 111 is an exchanging system for providing the wiredphone network with a service, and the mobile gateway 112 is a system forprocessing a call which is generated in the wired and wirelesssubscriber. The pBSC 113 connects the mobile gateway 112 to the pBTS210, and is also connected to the BSC 40 of the public mobilecommunication network for a general public mobile communication service.

The embodiment is an example where the mobile gateway 112 is used as anexchange interconnected to the wired exchange 111 and the PSTN 10 isconnected to a trunk of the wired exchange 111 through NO.7 signaling(signaling system no. 7, common channel signaling system defined by CCIT(International Telegraph and Telephone Consultive Committee)).

In the wired exchange 111, an extension Subscriber Line Card (SLC)interface is connected to the trunk of the mobile gateway 112 through anE1 signaling (E1 is a European standard for a 2.048 Mbit/s digital linecontaining 32 time slots, another example is T1 which is a digitalsignal level 1 (DS1) for a 24 channel 1.544 Mbit/s digital line and alsoT3 (DS3) being digital signal level 3 operating at 44.736 Mbit/s).

That is, in the case that the wired exchange 111 assigns a wired phonenumber with respect to an arbitrary subscriber for the wired phoneservice, the exchange 111 does not directly connect the SLC interface towhich the wired phone number is assigned to the wired phone terminal 250of the subscriber through the telephone line, but at first connects theSLC interface to the trunk of the mobile gateway 112 and then carries itto the mobile gateway 112.

The mobile gateway 112 assigns an extension subscriber line of the wiredphone service of the wired exchange 111 which is received through thetrunk to its SLC interface and connects the line to the correspondingwired phone terminal 250 through the telephone line.

Accordingly, the wired phone terminal 250 is connected to the SLCinterface of the wired exchange 111 by way of the SLC interface of themobile gateway 112 and the trunk. Therefore, the wired phone terminal250 can hear a dial tone provided by the wired phone exchange 111 in thecase that the user hooks off the receiver for speech.

Furthermore, the wired exchange 111 can assign a wired phone number toeach subscriber within the range which the SLC interface can afford asthe exchange 111 provides its extension subscriber with the wired phoneservice. The wired exchange 111 may include a database (included in amemory) including the wired phone number with which each extensionsubscriber is endowed.

Here, the wired phone number may be a normally used number whose end isconnected to the wired phone terminal 250, and a virtual phone numberwhose end is not connected to the wired phone terminal 250 and in whichonly the phone number is assigned.

However, in the wired exchange 111, the general wired phone number andvirtual wired phone number are not discriminated. It is because thewired exchange 111 assigns a phone number with respect to an arbitraryextension subscriber to the SLC (Subscriber Line Card) interface andcarries it to the trunk of the mobile gateway 112 through the SLCinterface, and whether the wired phone terminal 250 is connected to anend of the assigned phone number as its role is ended is up to themobile gateway 112 and the wired exchange 111 is controlled usingextension subscriber information in the same manner.

The mobile gateway 112 is connected to the pBSC 113 through the E1signaling, and functions to interconnect the wired phone service of thewired exchange 111 to the mobile communication service of the pBSC 113.

That is, a circuit assigned by connecting the mobile gateway 112 to thepBSC 113 through the E1 signaling is concerned with the wirelessterminal.

The mobile gateway 112 has a database 112 b (included for example in amemory 112 a) with respect to the wired phone number endowed by thewired exchange 111. That is, this database stores information indicatingwhether each phone number is a virtual phone number, and informationindicating whether each phone number is registered in the multipleterminating services as shown in FIG. 4.

For example, when a field indicating whether it is the virtual phone ornot is establish with 0, it means that the phone number is a wired phonenumber connected to the wired terminal, and the field is filled with 1,it means that the phone number is a virtual phone number.

On the other hand, when a field indicating whether the multipleterminating is performed or not is filled with 0, it means that theservice is restricted to an existing one which makes a call to the wiredphone terminal corresponding to the corresponding wired phone number,and when the field indicating whether the multiple terminating isperformed or not is filled with 1, it means that the service wasregistered in the service which performs the multiple terminating.

Accordingly, in the case that an arbitrary wired phone number which wasregistered in the multiple terminating service is called, as detailedinformation on the virtual wired phone number corresponding to thewireless terminal which is simultaneously called with the wired phonenumber is needed, the mobile gateway 112 requests the information to thepBSC 113.

When the information on the virtual phone number of the wirelessterminal connected to the corresponding wired phone number is receivedfrom the pBSC 113, the wireless terminal corresponding to the virtualphone number is called through the pBSC 113 and the pBST 210 aftersearching for the corresponding virtual phone number in its database.

On the other hand, the mobile gateway 112 transfers the outgoing numberand a caller ID of the mobile terminal which is received from thecorresponding wireless terminal to the wired exchange 111, when themobile gateway 112 receives outgoing service request from an arbitraryterminal through the pBSC 113.

At this time, the caller ID of the wired terminal transferred to thewired exchange 111 becomes a virtual wired phone number (for example,02-CCC-DDDD) with which its wireless terminal was endowed. Accordingly,the wired exchange 111 carries its caller ID and makes a call to thesubscriber of the corresponding outgoing number.

Here, the subscriber of the outgoing call may be an internal subscriberof the wired exchange 111 and be an external subscriber who can becalled through the PSTN 10.

The pBSC 113 performs functions corresponding to the BSC in the publicmobile communication system, that is, a mobile link control and a handoff.

The pBSC 113 controls the pBTS 210 to perform a call process of thesubscriber for supporting public mobile communication network andprivate mobile communication network services and an analysis of thesupplementary services, and to process all sorts of interfaces forinterconnecting to the mobile gateway 112.

For doing that, in the case of receiving the private mobilecommunication service, the wireless terminal subscriber addsidentification information established in advance to the outgoing phonenumber in order to discriminate the services.

Accordingly, the pBSC 113 discriminates whether the outgoing callrequires a public mobile communication service or a private mobilecommunication service using this identification information.

That is, it is determined whether the outgoing call of the wirelessterminal transferred from the pBTS 210 is the outgoing call requestingthe public mobile communication service or the outgoing call requestingthe private mobile communication service, and the outgoing call istransparently bypassed to the BSC 40 of the public mobile communicationnetwork when it is the public mobile communication service outgoingcall, and the outgoing call is transferred to the mobile gateway 112 toprovide the private mobile communication service when it is the privatemobile communication service outgoing call.

For example, when a user input a phone number “#212” through thewireless terminal, it is determined that the pBSC 113 wishes to use theprivate mobile communication service since it includes an identifier “#”indicating that the user wishes to use the private mobile communicationservice, and a speech request signal including the phone number “112” istransmitted to the mobile gateway 112 and it is possible to talk to anextension subscriber of “112”.

When the user inputs a phone number “#02-212-8866”, the pBSC 113determines that the user wishes to use the private mobile communicationservice since the number includes the identifier ‘#’ indicating that theuser wishes to use the private mobile communication service, and thepBSC 113 transmits a speech request signal including a phone number“02-212-8866” to the mobile gateway 112 and makes it possible for speechto a public phone network subscriber of “02-212-8866” through a publicphone network using the wired exchange 111.

When the user inputs a phone number “#016-212-8866”, the pBSC 113determines that the user wishes to use the private mobile communicationservice since the number includes the identifier ‘#’ indicating that theuser wishes to use the private mobile communication service, and thepBSC 113 transmits a speech request signal including the phone number“016-212-8866” to the mobile gateway 112 and makes it possible forspeech to a public mobile communication service subscriberof“016-212-8866” through the public mobile communication network by wayof a public phone network using the wired exchange 111. Identifiersother than ‘#’ can also be used.

The pBSC 113 includes an MIN number (for example, 016AAA-BBBB) withwhich a public mobile communication network has endowed in an arbitrarywireless terminal, and a database is 113 b (included for example amemory 113 a) with respect to a virtual wired phone number (for example,02-CCC-DDDD) with which its wireless terminal was endowed, as shown inFIG. 5.

That is, the database 113 b stores information indicating whether avirtual wired number exists in each of the MIN numbers of an arbitrarywireless terminal, and its wired number information in the case thatthere is the corresponding virtual wired number.

For example, when a field indicating whether there is a virtual wirednumber is established with 0, it means that there is no virtual wirednumber, and when the field is established with 1, it means that there isa virtual wired number corresponding to the MIN number and the virtualwired number corresponding to it is stored.

Accordingly, even in the case that the virtual wired phone number in themobile gateway 112 is called, it is possible to call the correspondingwireless terminal.

On the other hand, when an arbitrary wireless terminal requests anoutgoing service through the pBTS 210, it can be divided into two casesin large part.

Firstly, there may be a case that an outgoing is requested using aprivate mobile communication service. In this case, as the MIN numberwith which a public mobile communication network was endowed is carriedusing a caller ID transferred from the pBTS 210, the caller ID istransformed into a virtual wired phone number with reference to thedatabase 113 b shown in FIG. 5, and sent out through the mobile gateway112 and wired exchange 111.

In the case of not using the private mobile communication service, asthe MIN number with which the public mobile communication network wasendowed is carried using a caller ID transferred from the pBTS 210, thecaller ID is transferred to the BSC 40 of the public mobilecommunication network as it is.

Also, the pBSC 113 manages a database 113 c (included for example inmemory 113 a) for the multiple terminating services. That is, the pBSC113 manages the database 113 c with respect to a wired phone number (forexample, 02-XXX-YYYY) whose multiple terminating function among thewired phone terminals installed in a house is established and thevirtual wired phone number with which the wireless terminal wassimultaneously endowed when calling the corresponding wired phonenumber.

Accordingly, in the case that the mobile gateway 112 queries a virtualwired phone number which is multiply established with respect to thewired phone number (for example, 02-XXX-YYYY) which was registered inthe multiple terminating service, a virtual phone number (02-CCC-DDDD)which is linked to the wired phone number is found by searching for thecorresponding wired phone number (for example, 02-XXX-YYYY) in thedatabase, and a response can be made to the mobile gateway 112.

That is, the databases (112 b and 113 c) are constructed in each of themobile gateway 112 and pBSC 113 for the multiple terminating services.The database 112 b (included for example in memory 112 a) which isconstructed in the mobile gateway 112 stores information on whether anarbitrary wired phone number is multiply terminated and the virtualwired phone number with which each wireless terminal was endowed.

On the other hand, the database 113 c (included for example in memory113 a) which is constructed in the pBSC 113 stores information on anarbitrary wired phone number in which a multiple terminating function isestablished and a virtual wired phone number of the wireless terminalwhich will be called in the multiple terminating in the wired phonenumber. The databases 113 c and 113 b can also be a single database.

In the wired and wireless interconnecting apparatus 100 constructed asdescribed above, it is possible not only to make the wired phone servicewith respect to the wired phone terminal, but also to terminate a callto an assigned wired terminal when making a call of the virtual wiredphone.

In addition, it is possible to make both wired and wireless callssimultaneously in the mobile gateway 112 when the wired phone is called,and terminate the call to a desired terminal.

In the case that a call for the virtual wired phone is made in the PSTN10, the wired exchange 111 makes a call to the mobile gateway 112. Themobile gateway 112 makes a call to the wireless terminal in the mobilezone 200 through the pBSC 113 and pBTS 210 corresponding to the virtualwired phone number.

When a terminating response comes from the wireless terminal, the callis connected. When the terminating response does not come, the serviceis ended according to a wired phone service process.

FIG. 6 is a diagram showing a process of making a call to correspondingwired phone or wireless phone when making a call to the wired phone inthe system for interconnecting the wired and wireless phone servicesshown in FIG. 3.

With reference to a terminating path (P1, P2) shown in FIG. 3, aterminating process will be explained.

In the case that an arbitrary subscriber terminal 11 makes a call to anarbitrary wired phone number through the PSTN 10, the wired exchange 111is called the corresponding wired phone number through the PSTN 10 (S1)and determines whether the called phone number is the wired subscribernumber or not (S2). As a result of the determination, in the case thatthe called phone number is the wired subscriber number, it istransferred to the mobile gateway 112 through the wired subscribercircuit (S3). On the other hand, in the case that it is not the wiredsubscriber number as a result of the determination, a virtual subscribercircuit distributed to the wireless terminal is selected and transferredto the mobile gateway 112 (S4).

The mobile gateway 112 analyzes the phone number transferred from thewired exchange 111. First of all, the mobile gateway 112 determineswhether the corresponding phone number in the database 112 b shown inFIG. 4 which is owned by the gateway 112 is a multiple terminatingnumber or not (S5). As a result of the determination, in the case thatit is not the multiple terminating number, the call is distributed tothe wired subscriber (S6). Then, the wired terminal 250 responds to thedistribution (S7).

On the other hand, if the corresponding number is the multipleterminating number as a result of the determination, the call isdistributed to the wired subscriber at first (S8)(P1). Moreover, thevirtual wired phone number assigned to the corresponding wired number isrequested to the pBSC 113 (S9). The reason why the mobile gateway 112requests the virtual wired phone number to the pBSC 113 is that thedatabase 112 b of the mobile gateway 112 stores information indicatingonly whether the multiple terminating for an arbitrary wired terminal isestablished or not.

Since the pBSC 113 stores direct information with respect to thecorresponding wireless terminal to which the multiple terminating isestablished for the wired number, the mobile gateway 112 requests thevirtual wired phone number corresponding to the wireless terminal whichis multiply terminated to the pBSC 113 from the mobile gateway 112.

Accordingly, the pBSC 113 searches for the virtual number with respectto the corresponding wired phone number in its database and provides themobile gateway 112 with the virtual number. The mobile gateway 112distributes the call to the corresponding wireless terminal 220 throughthe pBSC 113 and pBTS 210 (S10)(P2). Accordingly, one of the wiredterminal 250 and the wireless terminal 220 responds to the distribution(S11). Also, the terminating service can be provided anywhere in themobile zone 200 with the wireless terminal when the wireless terminaldoes not respond to the distribution.

On the other hand, when it is determined whether the called phone numberis the wired subscriber number (S2), in the case that the called phonenumber is not the wired subscriber number, the mobile gateway 112distributes the call to the corresponding wireless terminal through thepBSC 113 and pBTS 210 (S12) after selecting the virtual subscribercircuit distributed to the wireless terminal and transferring thecircuit to the mobile gateway 112 (S4). Accordingly, the correspondingwireless terminal 220 responds to the distribution (S13).

FIG. 7 is a diagram showing a process in which a wireless terminalsubscriber makes a call to an external subscriber, FIG. 8 is a diagramshowing a process in which a wireless terminal subscriber makes a callto an internal subscriber, and FIG. 9 is a flow chart in which awireless terminal subscriber makes a call to an external subscriber oran internal subscriber.

With reference to a terminating path (P3) of FIG. 7 and a terminatingpath (P4) of FIG. 8, a terminating process of FIG. 9 is explained.

The wireless terminal 220 (for example, 016AAA-BBBB) makes a call to theother party's number (for example, 031-ZZZ-ZZZZ, or 02-XXX-XXXX) (S21).The outgoing call generated in the wireless terminal 220 is transferredto the mobile gateway 112 through the pBTS 210 and pBSC 113 (S22).

At this time, the pBSC 112 changes a caller ID (016AAA-BBBB) with whichthe wireless terminal is endowed to the virtual wired number (forexample, 02-CCC-DDDD) (S23). Here, the change of the caller ID isperformed with reference to the database 113 b of FIG. 5.

The mobile gateway 112 determines whether the outgoing number sent outfrom the wireless terminal is an external outgoing number or not (S24).In the case that it is the external outgoing number, the call is storedin a message and transferred to the wired exchange 111 (S25). The wiredexchange 111 makes a call to an external subscriber of the correspondingphone number through the PSTN 10 (P3)(S26).

On the other hand, it is determined that the outgoing number is not theexternal outgoing number when the mobile gateway 112 determines whetherthe outgoing number sent out from the wireless terminal is the externaloutgoing number or not, the internal subscribers 220, 240 and 260 in themobile zone 200 are called (P4)(S27).

At this time, an accounting process can be performed through accountingequipment (not shown) connected to the wired exchange 111. Here, aspeech between the internal subscribers performed in the wired andwireless interconnecting apparatus 100 within the mobile zone 200 is notspecially charged and can be freely operated. In such a case, theinternal subscribers can make a speech with one another without chargingfor the speech.

FIGS. 10 and 11 are diagrams showing a process in which an incoming callis re-routed when the mobile zone has nothing (i.e., no existence of thesubscriber in mobile zone 200 while there is no response of the wiredterminal or wireless terminal in the mobile zone 200).

The re-routing process of FIG. 11 will be explained with reference tothe terminating path (P5, P6 and P7A) of FIG. 10.

In the case that an arbitrary external subscriber terminal 11 makes acall to an arbitrary wired phone number through the PSTN 10, the wiredexchange 111 is called the corresponding wired phone number through thePSTN 10 and determines whether the called phone number is the wiredsubscriber number or not (S31). As a result of the determination, in thecase that the called phone number is the wired subscriber number, it istransferred to the mobile gateway 112 through the wired subscribercircuit (S32). On the other hand, in the case that the called phonenumber is not the wired subscriber number as a result of thedetermination, the virtual subscriber circuit distributed to thewireless terminal is selected and transferred to the mobile gateway 112(S33).

The mobile gateway 112 analyzes a phone number transferred from thewired exchange 111. At this time, the mobile gateway 112 has thedatabase 112 b shown in FIG. 4. The mobile gateway 112 determineswhether the corresponding phone number in the database is a multipleterminating number or not (S34). As a result of the determination, inthe case that the corresponding phone number is not the multipleterminating number, since it is the case of only the wired phoneterminal being called, the call is distributed to the wired subscriber(S35). On the other hand, as a result of the determination in S34, inthe case that the corresponding phone number is the multiple terminatingnumber, the call is distributed to the wired subscriber at first (S36).Next, the mobile gateway 112 requests a virtual number to the pBSC 113,and the virtual number for the corresponding wired phone number isprovided from the pBCS 113 and the call is distributed to thecorresponding wireless terminal 220 through the pBSC 113 and pBTS 210(S37). On the other hand, in the case that the mobile gateway 112receives the wired phone number through the virtual subscriber circuitdistributed to the wireless terminal, it distributes the call to thecorresponding wireless terminal through the pBSC 113 and pBTS 210.

Next, in the case that at least one of the wired terminal 250 and thewireless terminal 220 responds in the mobile zone 200, the call isprocessed according to the response, and it is, otherwise, determinedwhether there exists the subscriber in the mobile zone 200 (S38). In thecase that there does not exist the subscriber in the mobile zone 200 asthe response of the wired terminal or wireless terminal does not existin the mobile zone 200, the mobile gateway 112 makes a call to thewireless terminal 50 a in the public mobile communication networkthrough the BTS 50 in the public mobile communication network by way ofthe wired exchange 111 and the PSTN 10 and CDMA network 20. On the otherhand, in the case that there is no response even when the subscriberexists in the mobile zone 200, a voice information message such as“Please call again since the subscriber is not available now” may betransmitted (S40).

The Second Embodiment

FIG. 12 is a system block diagram for explaining a concept of a systemfor interconnecting wired and wireless phone services in accordance withanother embodiment of a wired and wireless interconnecting apparatusshown in FIG. 2.

Referring to FIG. 12, the wired and wireless interconnecting apparatus100 includes a wired exchange 121, a mobile gateway 122 and a pBSC 123.

Since an explanation for the mobile zone 200 including the pBTS 210 inthe drawing was previously provided, it may be omitted.

The embodiment is an example that the mobile gateway 122 is used as anexchange for Tandem and the PSTN 10 is connected to a trunk of themobile gateway 122 through NO.7 signaling.

The wired exchange 121 is a system providing subscribers except themobile zone 200 with a service of the wired phone network, and themobile gateway 122 is a system processing a call generated to the wiredand wireless subscribers in the mobile zone 200.

That is, the mobile gateway 122 performs a process of the call for thewired phone network service and the mobile communication service to thewired and wireless subscribers 220 to 270 in the mobile zone 200, andthe wired exchange 121 is a system providing a wired subscriber (notshown) except the mobile zone 200 with the wired phone service.

For example, in the case that a telephone station is installed for alarge scale of an apartment complex, there may exist a wired andwireless subscriber who resides in an apartment complex located in themobile zone 200 where the pBTS 210 is installed and the mobilecommunication service can be provided by the pBTS 210, and a wired phoneservice subscriber who resides in an apartment complex located outsidethe mobile zone 200 where the pBTS 210 is not installed and so themobile communication service cannot be provided, and only general wiredphone service can be provided.

In the case of the large scale apartment complex, as the number of thesubscriber is increased, there is a case that it is not permitted toprovide a subscriber in the mobile zone 200 and a subscriber outside themobile zone 200 in one mobile gateway 122 with a wired phone service dueto a capacity of an exchange.

Accordingly, in the case of the wired and wireless phone subscriber inthe mobile zone 200, the corresponding communication service is providedby the mobile gateway 122, and in the case of the subscriber outside themobile zone 200, the corresponding communication service is provided bythe separate wired exchange 121.

Therefore, in the case that there is a call to an arbitrary wired phonenumber through the PSTN 10, the mobile gateway 122 determines whetherthe phone number is an incoming call for its extension subscriber. Inaddition, as a result of the determination, in the case that the phonenumber is not the extension incoming call, for example, a subscriberphone number outside the mobile zone 200, it is a Tandem call, and thiscall is transferred to the wired exchange 121 and then the correspondingservice is provided in the wired exchange 121.

The pBSC 123 connects the mobile gateway 122 to the pBTS 210, and isalso connected to the BSC 40 of the public mobile communication networkfor the general public mobile communication service.

That is, in the case that the mobile gateway 122 assigns the wired phonenumber with respect to an arbitrary subscriber for the wired phoneservice, it directly connects the SLC interface to which the wired phonenumber is assigned to the wired phone terminal 250 through a telephoneline. Accordingly, in the case that the wired phone terminal 250 hooksoff its receiver for a speech, it hears a dial tone provided in themobile gateway 122.

Also, as the mobile gateway 122 provides its extension subscriber withthe wired phone service, each subscriber can be assigned the wired phonenumber to the extent that the SLC interface can afford it.

Here, the wired phone number may be a general phone number which isconnected to the wired phone terminal 250 in its end, and may be avirtual wired phone number which is not connected to the wired phoneterminal 250 and is assigned only the phone number.

On the other hand, the mobile gateway 122 is connected to the pBSC 123through an E1 signaling, and performs a function to interconnect amobile communication service of the pBSC 123.

For doing that, the mobile gateway 122 has a database 122 b (included infor example a memory 122 a) for the wired phone number. That is, thisdatabase 122 b stores information indicating whether each phone numberis a virtual phone number, and whether each phone number has beenregistered in the multiple terminating service.

For example, when a field indicating whether each phone number is avirtual phone is established with 0, it means that the phone number is awired phone number connected to the wired terminal, and when the fieldis filled with 1, it means that the phone number is a virtual phonenumber of the wireless terminal.

On the other hand, when a field indicating whether the multipleterminating service is established is filled with 0, it means that theservice is restricted to an existing service which makes a call to thewired terminal corresponding to the corresponding wired phone number,and when the field is filled with 1, it means that the service isregistered in a service which can perform the multiple terminatingservice.

Accordingly, in the case that an arbitrary wired phone number to whichthe multiple terminating service is registered is called, the mobilegateway 122 requests its information to the pBSC 123 as detailedinformation on the virtual wired phone number which corresponds to awireless terminal to be called simultaneously with the wired phonenumber is needed.

When information on the virtual phone number of the wireless terminalconnected to the corresponding wired phone number is received from thepBSC 123, the corresponding virtual phone number is found in itsdatabase and the wireless terminal corresponding to its virtual phonenumber is called through the pBSC 123 and pBST 210.

On the other hand, the mobile gateway 122 transfers the outgoing numberand a caller ID of the wireless terminal which is received from thecorresponding wireless terminal, and makes a call to the subscriber ofthe corresponding outgoing number, when the mobile gateway 122 receivesoutgoing service request from an arbitrary terminal through the pBSC123.

At this time, the caller ID of the wireless terminal transferred to themobile gateway 122 becomes the virtual wired phone number (for example,02-CCC-DDDD) with which its wireless terminal is endowed.

Here, the subscriber of the outgoing call may be an internal subscriberof the mobile gateway 122, and an external subscriber who can be calledthrough the PSTN 10.

The pBSC 123 performs functions corresponding to the BSC in the publicmobile communication system, that is, a wireless link control and ahandoff.

The pBSC 123 controls the pBTS 210 to perform a call process of thesubscriber in order to support the public mobile communication networkand private mobile communication network services and an analysis of thesupplementary service, and to process all sorts of interfaces forinterconnecting to the mobile gateway 122.

For doing that, in the case of receiving a private mobile communicationservice, the wireless terminal subscriber adds identificationinformation established in advance to the outgoing phone number in orderto discriminate the services.

Accordingly, the pBSC 123 discriminates whether the outgoing callrequires a public mobile communication service or a private mobilecommunication service using this identification information.

That is, it is determined whether the outgoing call of the wirelessterminal transferred from the pBTS 210 is the outgoing call requestingthe public mobile communication service or the outgoing call requestingthe private mobile communication service, and the outgoing call istransparently bypassed to the BSC 40 of the public mobile communicationnetwork when it is a public mobile communication service outgoing call,and the outgoing call is transferred to the mobile gateway 122 toprovide the private mobile communication service when it is the privatemobile communication service outgoing call.

For example, when a user input a phone number “#212” through thewireless terminal, it is determined that the pBSC 123 wishes to use aprivate mobile communication service since it includes an identifier “#”indicating that the user wishes to use the private mobile communicationservice, and a speech request signal including a phone number “112” istransmitted to the mobile gateway 122 and it is possible to talk to anextension subscriber of “112”.

When the user inputs a phone number “#02-212-8866”, the pBSC 123determines that the user wishes to use the private mobile communicationservice since the number includes an identifier ‘#’ indicating that theuser wishes to use the private mobile communication service, and thepBSC 123 transmits a speech request signal including a phone number“02-212-8866” to the mobile gateway 122 and makes it possible for speechto a public phone network subscriber of “02-212-8866” through the PSTN10.

When the user inputs a phone number “#016-212-8866”, the pBSC 123determines that the user wishes to use a private mobile communicationservice since the number includes an identifier ‘#’ indicating that theuser wishes to use the private mobile communication service, and thepBSC 123 transmits a speech request signal including the phone number“016-212-8866” to the mobile gateway 122 and makes it possible to speechto a public mobile communication service subscriber of “016-212-8866”through the public mobile communication network by way of the PSTN 10.Identifiers other than ‘#’ can also be used.

The pBSC 123 includes a MIN number (for example, 016AAA-BBBB) with whicha public mobile communication network has endowed in an arbitrarywireless terminal, and a database 123 b (included for example in memory123 a) with respect to a virtual wired phone number (for example,02-CCC-DDDD) with which its wireless terminal was endowed, as shown inFIG. 5.

That is, the database stores information indicating whether a virtualwired number exists in each of the MIN numbers of an arbitrary wirelessterminal, and its wired number information in the case that there is thecorresponding virtual wired number.

For example, when a field indicating whether there is a virtual wirednumber is established with 0, it means that there is no virtual wirednumber, and when the field is established with 1, it means that there isa virtual wired number corresponding to the MIN number and the virtualwired number corresponding to it is stored.

Accordingly, even in the case that the virtual wired phone number in themobile gateway 122 is called, it is possible to call the correspondingwireless terminal.

On the other hand, when an arbitrary wireless terminal requests anoutgoing service through the pBTS 210, it can be divided into two casesin large part.

Firstly, there may be a case that an outgoing is requested using aprivate mobile communication service. In this case, as the MIN numberwith which a public mobile communication network was endowed is loadedusing a caller ID transferred from the pBTS 210, the caller ID istransformed into a virtual wired phone number with reference to thedatabase 123 b shown in FIG. 5, and sent to the mobile gateway 122.

In the case of not using the private mobile communication service, asthe MIN number with which the public mobile communication network wasendowed is carried using a caller ID transferred from the pBTS 210, thecaller ID is transferred to the BSC 40 of the public mobilecommunication network as it is.

Also, the pBSC 123 manages a database 123 c (included for example inmemory 123 a) for the multiple terminating services. That is, the pBSC113 manages the database with respect to a wired phone number (forexample, 02-XXX-YYYY) whose multiple terminating function among thewired phone terminals installed in a house is established and thevirtual wired phone number with which the wireless terminal wassimultaneously endowed when calling the corresponding wired phonenumber. The database 123 c can also be combined into database 123 b.

Accordingly, in the case that the mobile gateway 122 queries a virtualwired phone number which is multiply established with respect to thewired phone number (for example, 02-XXX-YYYY) which was registered inthe multiple terminating service, a virtual phone number (02-CCC-DDDD)which is linked to the wired phone number is found by searching for thecorresponding wired phone number (for example, 02-XXX-YYYY) in thedatabase, and a response can be made to the mobile gateway 122.

That is, databases (122 b and 123 c) are constructed in each of themobile gateway 122 and pBSC 123 for the multiple terminating services.The database 122 b which is constructed in the mobile gateway 122 storesinformation on whether an arbitrary wired phone number is multiplyterminated and the virtual wired phone number with which each wirelessterminal was endowed.

On the other hand, the database 123 c which is constructed in the pBSC123 stores information on an arbitrary wired phone number in which amultiple terminating function is established and a virtual wired phonenumber of the wireless terminal which will be called in the multipleterminating in the wired phone number.

In the wired and wireless interconnecting apparatus 100 constructed asdescribed above, it is possible not only to make the wired phone servicewith respect to the wired phone terminal, but also to terminate a callto an assigned wired terminal when making a call of the virtual wiredphone. Additionally, it is possible to make both wired and wirelesscalls simultaneously in the mobile gateway 122 when the wired phone iscalled, and terminate the call to a desired terminal.

In the case that a call for the virtual wired phone is made in the PSTN10, the mobile gateway 122 makes a call to the wireless terminal in themobile zone 200 through the pBSC 123 and pBTS 210 corresponding to thevirtual wired phone number.

When an incoming call response comes from the wireless terminal, thecall is connected. When the incoming call response does not come, theservice is ended according to a wired phone service process.

FIGS. 13 and 14 are diagrams showing a process in which a wired phoneand a wireless terminal are simultaneously called when a wired phone iscalled.

With reference to incoming call paths (P7B, P8) shown in FIG. 13 and aflow chart shown in FIG. 14, an incoming process will be explained.

In the case that an arbitrary subscriber terminal 11 makes a call to anarbitrary wired phone number through the PSTN 10, the mobile gateway 122receives the corresponding wired phone number through the PSTN 10 anddetermines whether the called phone number is an incoming call numberfor an extension subscriber in the mobile gateway 122 (S101). As aresult of the determination, in the case that the called phone number isnot the extension incoming call, it is a Tandem call and is transferredto the wired exchange 121 (S102). On the other hand, in the case thatthe called phone number is an extension incoming call, the mobilegateway 122 analyzes the phone number transferred from the PSTN 10. Atthis time, the mobile gateway 122 realizes whether the correspondingphone number is a wired phone number, and whether the correspondingphone number is a multiple terminating number through the database 122 bshown in FIG. 4.

First of all, it is determined whether the corresponding phone number isa wired subscriber phone number (S103). In case that the correspondingphone number is not the wired subscriber number, the phone number is awireless subscriber number so that a virtual number is requested fromthe pBSC 123 and the virtual number is provided by the pBSC 123. Inaddition, a call is distributed to the corresponding wireless terminal220 through the pBSC 123 and pBTS 210 (S104). Then, the correspondingwireless terminal 220 responds to the distribution (S105).

On the other hand, as a result of the determination of step S103, in thecase that the corresponding phone number is a wired subscriber number,it is determined whether the subscriber number is a phone number whichis established for the wired and wireless multiple terminating (S106).As a result of the determination of step S 106, in the case that thesubscriber number is not the multiple terminating number, the call isdistributed to the wired subscriber (S107). Accordingly, the wiredterminal 250 responds to the distribution (S108). However, in the caseof the multiple terminating number, the call is distributed to the wiredsubscriber at first (S109). Moreover, the virtual number is requested tothe pBSC 123 and the virtual number is provided from the pBSC 123, andthe call is distributed to the corresponding wireless terminal 220through the pBSC123 and pBTS 210 (S110). Then, one of the wired terminal250 and the wireless terminal 220 responds to the distribution,accordingly (S111).

FIG. 15 is a diagram showing a process of making a call to an externalsubscriber by a wireless terminal subscriber, FIG. 16 is a diagramshowing a process of making a call to an internal subscriber by awireless terminal subscriber, and FIG. 17 is a flow chart showing aprocess of making a call to an external subscriber or internalsubscriber by a wireless terminal subscriber.

With reference to an incoming call path P9 of FIG. 15 and an incomingpath P10 of FIG. 16, a process of incoming call of FIG. 17 will beexplained.

A number of the other's party (for example, 031-ZZZ-ZZZZ, or02-XXX-XXXX) is called in the wireless terminal 220 (for example,016AAA-BBBB) (S121). An outgoing call generated in the wireless terminal220 is transferred to the mobile gateway 122 through the pBTS 210 andpBSC 123 (S122).

At this time, the pBSC 123 changes a caller ID (016AAA-BBBB) with whicha wireless terminal is endowed into a virtual wired number (for example,02-CCC-DDDD) with which the wireless terminal is endowed (S123).

The mobile gateway 122 determines whether the outgoing number sent fromthe wireless terminal is an external outgoing call number (S124). As aresult of the determination in S124, in the case of the externaloutgoing call number, the external subscriber of the corresponding phonenumber is called through the PSTN 10 (S125).

On the other hand, when it was determined whether the outgoing number isthe external outgoing number in the mobile gateway 122, in the case thatthe outgoing number is not the external outgoing number as a result ofthe determination, the internal subscribers 220, 240, and 260 in themobile zone 200 are called (P10)(S126).

At this time, an accounting process is performed using accountingequipment (not shown) connected to a Tandem mobile gateway 122.

Here, a speech between the internal subscribers performed in the wiredand wireless interconnecting apparatus 100 in the mobile zone 200 maynot be charged and operated freely. In such a case, the subscriber canmake a speech between the internal subscribers without a separateaccounting.

FIGS. 18 and 19 are diagrams showing a process of re-routing an incomingcall when a mobile zone has nothing.

With reference to incoming call paths P11, P12 and P13 of FIG. 18, are-routing process of FIG. 19 will be explained.

In the case that an arbitrary subscriber terminal 11 makes a call to anarbitrary wired phone number through the PSTN 10, the mobile gateway 122receives the corresponding wired phone number through the PSTN 10 anddetermines whether the called phone number is the incoming call numberfor the extension subscriber in the mobile gateway 122 (S131). As aresult of the determination in S131, in the case that called phonenumber is not the extension incoming call number, the called phonenumber is a Tandem call number and transferred to the wired exchange(S132).

On the other hand, in the case that the called phone number is anextension incoming call number, the mobile gateway 122 analyzes a phonenumber transferred from the PSTN 10. At this time, the mobile gateway122 realizes whether the corresponding phone number is a wired phonenumber, and whether the corresponding phone number is a multipleterminating number, through its database.

First of all, it is determined whether the corresponding phone number isthe wired phone number (S133). As a result of the determination, in thecase of the wired subscriber number, it is determined whether the wiredsubscriber number is a phone number which is established for a wired andwireless multiple terminating (S134). As a result of the determination,in the case that the wired subscriber number is not the multipleterminating number, the call is distributed to only the wired subscriberand this state is stayed until the corresponding wired terminal respondsto the state (S135). On the other hand, as a result of thedetermination, in the case of the multiple terminating number, the callis distributed to the wired subscriber at first (S136). Moreover, avirtual number is requested to the pBSC 123 and the virtual number isprovided from the pBSC 123, and the call is distributed to thecorresponding wireless terminal 220 through pBSC 123 and pBTS 210(S137). By the way, in the case that the mobile gateway 122 receives awired phone number through the virtual subscriber circuit distributed tothe wireless terminal, it distributes the call to the correspondingwireless terminal 220 through the pBSC 123 and pBTS 210.

Next, in the case that at least one of the wired terminal 250 and thewireless terminal 220 responds to the state in the mobile zone 200, thecall is processed according to the response. In the case of no response,it is determined whether a subscriber exists in the mobile zone 200(S138). In the case that it is determined that the subscriber does notexist in the mobile zone 200 as there is no response of the wiredterminal 250 or wireless terminal 220 in the mobile zone 200, the mobilegateway 122 makes a call to the wireless terminal 50 a in the publicmobile communication network through the BTS 50 existed in the publicmobile communication network using the PSTN 10 and CDMA network 20(S139). In the case that there is no response even when the subscriberexists in the mobile zone 200, a voice information message “Please callagain since the subscriber is not available now” may be transmitted(S140).

The Third Embodiment

FIG. 20 is a system block diagram for explaining a concept of a systemfor interconnecting wired and wireless phone services in accordance withyet another embodiment of a wired and wireless interconnecting apparatusshown in FIG. 2.

Referring to FIG. 20, the wired and wireless interconnecting apparatus100 includes a group exchange 131 performing a wired exchange functionand a mobile gateway function, and a private base station controllerpBSC 132.

Since an explanation for the mobile zone 200 including the pBTS 210 inthe drawing was previously provided, it may be omitted.

The group exchange 131 is a system performing a call process of wiredphone network and mobile communication services for wired and wirelesssubscribers 220 to 270 in the mobile zone 200, and providing subscribers(not shown) outside the mobile zone 200 with a wired phone service.

For example, in the case that the exchange is installed in a small sizedapartment complex, the pBTS 210 is installed and the wired and wirelessphone interconnecting service is provided to the wired and wirelesssubscribers who reside in an apartment placed in the mobile zone 200which is provided with the wireless service by the pBTS 210, and thegeneral wired phone service is provided to the wired phone servicesubscribers who reside in an apartment placed outside the mobile zone200 which is not provided with the mobile communication service by theBTS210.

The pBSC 132 connects the group exchange 131 to the pBTS 210, and isconnected to the BSC 40 of the public mobile communication network for ageneral public mobile communication service.

In the embodiment, functions of the mobile gateway and wired exchangeare embodied in one group exchange 131, wherein the PSTN 10 is connectedto a trunk of the group exchange 131 through the NO. 7 signaling.

The wired exchange 111 is connected to each of the wired phone terminals230, 250 and 270 through the extension Subscriber Line Card (SLC)interface using a telephone line.

That is, in the case that the group exchange 131 assigns the wired phonenumber to an arbitrary subscriber for the wired phone service, the SLCinterface to which the wired phone number is assigned is directlyconnected to the wired phone terminal 250 of the subscriber through thetelephone line. Accordingly, the wired phone terminal 250 hears a dialtone provided by the group exchange 131 when a receiver is hooked offfor a speech.

Also, as the group exchange 131 provides its extension subscriber withthe wired phone service, the wired phone number is assigned to eachsubscriber to the extent that the SLC interface can afford it.

Here, the wired phone number may be a general phone number which isconnected to the wired phone terminal 250 in its end, and may be avirtual wired phone number which is not connected to the wired phoneterminal 250 and is assigned only a phone number.

On the other hand, the group exchange 131 is connected to the pBSC 132through an E1 signaling, and performs a function to interconnect amobile communication service of the pBSC 132.

For doing that, the group exchange 131 has a database 131 b (included inmemory 131 a for example) for the wired phone number. That is, thisdatabase 131 b stores information indicating whether each phone numberis a virtual phone number, and whether each phone number has beenregistered in the multiple terminating service, as shown in FIG. 4.

For example, when a field indicating whether each phone number is thevirtual phone is established with 0, it means that the phone number is awired phone number connected to the wired terminal, and when the fieldis filled with 1, it means that the phone number is a virtual phonenumber of the wireless terminal.

On the other hand, when a field indicating whether the multipleterminating service is established is filled with 0, it means that theservice is restricted to an existing service which makes a call to thewired phone terminal corresponding to the corresponding wired phonenumber, and when the field is filled with 1, it means that the serviceis registered in a service which can perform the multiple terminatingservice.

Accordingly, in the case that an arbitrary wired phone number to whichthe multiple terminating service is registered is called, the groupexchange 131 requests its information to the pBSC 132 as detailedinformation on the virtual wired phone number which corresponds to awireless terminal to be called simultaneously with the wired phonenumber is needed.

When the information on the virtual phone number of the wirelessterminal connected to the corresponding wired phone number is receivedfrom the pBSC 132, the corresponding virtual phone number is found inits database and the wireless terminal corresponding to its virtualphone number is called through the pBSC 132 and pBST 210.

On the other hand, the group exchange 131 transfers the outgoing numberand a caller ID of the wireless terminal received from the correspondingwireless terminal and makes a call to the subscriber of thecorresponding outgoing number, the group exchange 131 receives outgoingservice request from an arbitrary terminal through the pBSC 132.

At this time, the caller ID (identification) of the wireless terminaltransferred to the group exchange 131 becomes the virtual wired phonenumber (for example, 02-CCC-DDDD) with which its wireless terminal isendowed.

Here, the subscriber of the outgoing call may be an internal subscriberof the group exchange 131, and an external subscriber who can be calledthrough the PSTN 10.

The pBSC 132 performs functions corresponding to the BSC in the publicmobile communication system, that is, a wireless link control and ahandoff.

The pBSC 132 controls the pBTS 210 to perform a call process of thesubscriber in order to support the public mobile communication networkand private mobile communication network services and an analysis of thesupplementary service, and to process all sorts of interfaces forinterconnecting to the group exchange 131.

For doing that, in the case that the wireless terminal subscriber wishesto receive a private mobile communication service, the subscriber addsidentification information established in advance to the outgoing phonenumber in order to discriminate the services.

Accordingly, the pBSC 132 discriminates whether the outgoing callrequires a public mobile communication service or a private mobilecommunication service using this identification information.

That is, it is determined whether the outgoing call of the wirelessterminal transferred from the pBTS 210 is the outgoing call requestingthe public mobile communication service or the outgoing call requestingthe private mobile communication service, and the outgoing call istransparently bypassed to the BSC 40 of the public mobile communicationnetwork when it is a public mobile communication service outgoing call,and the outgoing call is transferred to the group exchange 131 toprovide the private mobile communication service when it is the privatemobile communication service outgoing call.

For example, when a user inputs a phone number “#212” through thewireless terminal, it is determined that the pBSC 132 wishes to use aprivate mobile communication service since it includes an identifier “#”indicating that the user wishes to use the private mobile communicationservice, and a speech request signal including a phone number “112” istransmitted to the group exchange 131 and it is possible to talk to anextension subscriber of “112”.

When the user inputs a phone number “#02-212-8866”, the pBSC 132determines that the user wishes to use the private mobile communicationservice since the number includes an identifier ‘#’ indicating that theuser wishes to use the private mobile communication service, and thepBSC 132 transmits a speech request signal including a phone number“02-212-8866” to the group exchange 131 and makes it possible to speechto a public phone network subscriber of “02-212-8866” through the PSTN10.

When the user inputs a phone number “#016-212-8866”, the pBSC 132determines that the user wishes to use a private mobile communicationservice since the number includes an identifier ‘#’ indicating that theuser wishes to use the private mobile communication service, and thepBSC 132 transmits the speech request signal including the phone number“016-212-8866” to the group exchange 131 and makes it possible to speechto a public mobile communication service subscriber of “016-212-8866”through the public mobile communication network by way of the PSTN 10.Identifiers other than ‘#’ can also be used.

The pBSC 132 includes a MIN number (for example, 016AAA-BBBB) with whicha public mobile communication network has endowed in an arbitrarywireless terminal, and a database 132 b (included in a memory 132 a forexample) with respect to a virtual wired phone number (for example,02-CCC-DDDD) with which its wireless terminal was endowed, as shown inFIG. 5.

That is, the database stores information indicating whether a virtualwired number exists in each of the MIN number of an arbitrary wirelessterminal, and its wired number information in the case that there is thecorresponding virtual wired number.

For example, when a field indicating whether there is a virtual wirednumber is established with 0, it means that there is no virtual wirednumber, and when the field is established with 1, it means that there isa virtual wired number corresponding to the MIN number and the virtualwired number corresponding to it is stored.

Accordingly, even in the case that the virtual wired phone number in thegroup exchange 131 is called, it is possible to call the correspondingwireless terminal.

On the other hand, when an arbitrary wireless terminal requests anoutgoing service through the pBTS 210, it can be divided into two casesin large part.

Firstly, there may be a case that an outgoing is requested using aprivate mobile communication service. In this case, as the MIN numberwith which a public mobile communication network was endowed is carriedusing a caller ID transferred from the pBTS 210, the caller ID istransformed into a virtual wired phone number with reference to thedatabase 132 b shown in FIG. 5, and sent to the group exchange 131.

On the other hand, in the case of not using the private mobilecommunication service, as the MIN number with which the public mobilecommunication network was endowed is carried using a caller IDtransferred from the pBTS 210, the caller ID is transferred to the BSC40 of the public mobile communication network as it is.

Also, the pBSC 132 manages a database 132 c (included in for example thememory 132 a) for the multiple terminating services. That is, the pBSC132 manages the database 132 c with respect to a wired phone number (forexample, 02-XXX-YYYY) whose multiple terminating function wasestablished among the wired phone terminals installed in a house and thevirtual wired phone number with which the wireless terminal to besimultaneously called when calling the corresponding wired phone numberwas endowed.

Accordingly, in the case that the group exchange 131 queries a virtualwired phone number which is multiply established with respect to thewired phone number (for example, 02-XXX-YYYY) which was registered inthe multiple terminating service, a virtual phone number (02-CCC-DDDD)which is linked to the wired phone number is found by searching for thecorresponding wired phone number (for example, 02-XXX-YYYY) in thedatabase, and a response can be made to the group exchange 131.

That is, databases (131 b and 132 c) are constructed in each of thegroup exchange 131 and pBSC 132 for the multiple terminating services.The database 131 b which is constructed in the group exchange 131 storesinformation on whether an arbitrary wired phone number is multiplyterminated and the virtual wired phone number with which each wirelessterminal was endowed.

On the other hand, the database 132 c which is constructed in the pBSC132 stores information on an arbitrary wired phone number in which amultiple terminating function is established and a virtual wired phonenumber of the wireless terminal which will be called in the multipleterminating in the wired phone number. The database 132 c can becombined into database 132 b.

In the wired and wireless interconnecting apparatus 100 constructed asdescribed above, it is possible not only to make the wired phone servicewith respect to the wired phone terminal, but also to terminate a callto an assigned wired terminal when making a call of the virtual wiredphone. Additionally, it is possible to make both wired and wirelesscalls simultaneously in the group exchange 131 when the wired phone iscalled, and terminate the call to a desired terminal.

In the case that a call for the virtual wired phone is made in the PSTN10, the group exchange 131 makes a call to the wireless terminal in themobile zone 200 through the pBSC 132 and pBTS 210 corresponding to thevirtual wired phone number.

When an incoming call response comes from the wireless terminal, thecall is connected. When the incoming call response does not come, theservice is ended according to a wired phone service process.

FIGS. 21 and 22 are diagrams showing a process in which wired phone andwireless terminals are simultaneously called when a wired phone iscalled.

With reference to destination paths (P14, P15) shown in FIG. 21, anincoming process will be explained.

In the case that an arbitrary subscriber terminal 11 makes a call to anarbitrary wired phone number through the PSTN 10, the group exchange 131receives the corresponding wired phone number through the PSTN 10 andanalyzes the phone number. At this time, the group exchange 131determines whether the corresponding phone number is the wiredsubscriber number (S201). As a result of the determination in S201, inthe case of not being the wired subscriber number, since thecorresponding phone number is the wireless terminal subscriber number,the call is distributed to the corresponding wireless terminal throughthe pBSC 132 and pBTS 210 (S202). Accordingly, the correspondingwireless terminal 220 responds to the distribution (S203).

On the other hand, when it is determined whether the called phone numberis the wired subscriber number, and in the case that the called phonenumber is the wired subscriber number as a result of the determinationin S201, it is determined whether the corresponding phone number is themultiple terminating number in the database 131 b shown in FIG. 4(S204). In the case that it is determined that the corresponding phonenumber is not the multiple terminating number as a result of thedetermination in S204, the call is distributed to the wired subscriber(S205) and the wired terminal responds to the distribution (S206).

However, in the case of the multiple terminating number as a result ofthe determination in S204, the group exchange 131 distributes the callto the wired subscriber at first (S207)(P14). Additionally, the virtualnumber is requested to the pBSC 132 and a searched virtual number isreceived from the pBSC 132 so that a call is distributed to thecorresponding wireless terminal 220 through the pBSC 132 and pBTS 210(S208)(P15). Then, one of the wired terminal 250 and wireless terminal220 responds to the distribution (S209). Also, the terminating servicecan be provided anywhere in the mobile zone 200 with the wirelessterminal when the wireless terminal does not respond to thedistribution.

On the other hand, when it is determined whether the corresponding phonenumber is the wired subscriber number (S201), in the case of not beingthe wired subscriber number, the call is distributed to thecorresponding wireless terminal through the pBSC 132 and pBTS 210 (S202)and accordingly, the corresponding wireless terminal 220 responds to thedistribution (S203) as mentioned above.

FIG. 23 is a diagram showing a process in which a wireless terminalsubscriber makes a call to an external subscriber, FIG. 24 is a diagramshowing a process in which a wireless terminal subscriber makes a callto an internal subscriber, and FIG. 25 is a flow chart in which awireless terminal subscriber makes a call to an external subscriber oran internal subscriber.

With reference to a terminating path (P16) of FIG. 23 and a terminatingpath (P17) of FIG. 24, a terminating process of FIG. 25 is explained.

The wireless terminal 220 (for example, 016AAA-BBBB) makes a call to theother party's number (for example, 031-ZZZ-ZZZZ, or 02-XXX-XXXX) (S211).An outgoing call generated in the wireless terminal 220 is transferredto the group exchange 131 through the pBTS 210 and pBSC 132 (S212).

At this time, the pBSC 132 changes a caller ID (016AAA-BBBB) with whichthe wireless terminal is endowed to the virtual wired number (forexample, 02-CCC-DDDD) (S213). Here, the change of the caller ID isperformed with reference to the database 132 b of FIG. 5.

The group exchange 131 determines whether the outgoing number sent outfrom the wireless terminal is an external outgoing number or not (S214).In the case that it is the external outgoing number, the group exchange131 makes a call to an external subscriber of the corresponding phonenumber through the PSTN 10 (P16)(S215).

On the other hand, in the case that it is determined that the outgoingnumber is not the external outgoing number when the group exchange 131determines whether the outgoing number sent out from the wirelessterminal is the external outgoing number or not, the internalsubscribers 220, 240 and 260 in the mobile zone 200 are called(P17)(S216).

At this time, an accounting process can be performed through accountingequipment (not shown) connected to the group exchange 131. Here, aspeech between the internal subscribers performed in the wired andwireless interconnecting apparatus 100 within the mobile zone 200 is notspecially charged and can be freely operated. In such a case, thesubscribers can make a speech with one another without charging for thespeech.

FIGS. 26 and 27 are diagrams showing a process in which an incoming callis re-routed when the mobile zone has nothing.

The re-routing process of FIG. 27 will be explained with reference tothe terminating paths (P18, P19 and P20) of FIG. 26.

In the case that an arbitrary subscriber terminal 11 makes a call to anarbitrary wired phone number through the PSTN 10, the group exchange 131receives the corresponding wired phone number through the PSTN 10 andanalyzes the called phone number. At this time, the group exchange 131determines whether the corresponding wired phone number is the wiredsubscriber number or not (S221). As a result of the determination, inthe case of the wired subscriber number, the group exchange 131determines whether its corresponding phone number in the database 131 bas shown in FIG. 4 is a multiple terminating number (S222). As a resultof the determination of S222, in the case that the corresponding phonenumber is not the multiple terminating number, the call is distributedto the wired subscriber (S223). However, as a result of thedetermination of S222, in the case that the corresponding phone numberis the multiple terminating number, the call is distributed to the wiredsubscriber at first (P18)(S224). Next, the group exchange 131 requests avirtual number to the pBSC 132, and a virtual number for thecorresponding wired phone number is provided from the pBSC 132 and thecall is distributed to the corresponding wireless terminal 220 throughthe pBSC 132 and pBTS 210 (P19)(S225). On the other hand, when it isdetermined whether the corresponding phone number is the wiredsubscriber number (S221), in the case of not being the wired subscribernumber as a result of the determination, the call is distributed to thecorresponding wireless terminal through the pBSC 132 and pBTS 210.

Next, in the case that at least one of the wired terminal 250 and thewireless terminal 220 makes a response in the mobile zone 200, the callis processed according to the response, and it is, otherwise, determinedwhether there exists the subscriber in the mobile zone 200 (S226). Inthe case that there exists nothing in the mobile zone 200 as theresponse of the wired terminal or wireless terminal does not exist inthe mobile zone 200 and there is no subscriber in the mobile zone 200,the group exchange 131 makes a call to the wireless terminal 50 a in thepublic mobile communication network through the BTS 50 existing in thepublic mobile communication network by way of the PSTN 10 and CDMAnetwork 20 (S227). In the case that there is no response even when thesubscriber exists in the mobile zone 200, a voice information messagesuch as “Please call again since the subscriber is not available now”may be transmitted (S228).

The present invention can be realized as computer-executableinstructions in computer-readable media. The computer-readable mediaincludes all possible kinds of media in which computer-readable data isstored or included or can include any type of data that can be read by acomputer or a processing unit. The computer-readable media include forexample and not limited to storing media, such as magnetic storing media(e.g., ROMs, floppy disks, hard disk, and the like), optical readingmedia (e.g., CD-ROMs (compact disc-read-only memory), DVDs (digitalversatile discs), re-writable versions of the optical discs, and thelike), hybrid magnetic optical disks, organic disks, system memory(read-only memory, random access memory), non-volatile memory such asflash memory or any other volatile or non-volatile memory, othersemiconductor media, electronic media, electromagnetic media, infrared,and other communication media such as carrier waves (e.g., transmissionvia the Internet or another computer). Communication media generallyembodies computer-readable instructions, data structures, programmodules or other data in a modulated signal such as the carrier waves orother transportable mechanism including any information delivery media.Computer-readable media such as communication media may include wirelessmedia such as radio frequency, infrared microwaves, and wired media suchas a wired network. Also, the computer-readable media can store andexecute computer-readable codes that are distributed in computersconnected via a network. The computer readable medium also includescooperating or interconnected computer readable media that are in theprocessing system or are distributed among multiple processing systemsthat may be local or remote to the processing system. The presentinvention can include the computer-readable medium having stored thereona data structure including a plurality of fields containing datarepresenting the techniques of the present invention.

An example of a computer, but not limited to this example of thecomputer, that can read computer readable media that includescomputer-executable instructions of the present invention is shown inFIG. 28. The computer 300 includes a processor 302 that controls thecomputer 300. The processor 302 uses the system memory 304 and acomputer readable memory device 306 that includes certain computerreadable recording media. A system bus connects the processor 302 to anetwork interface 308, modem 312 or other interface that accommodates aconnection to another computer or network such as the Internet. Thesystem bus may also include an input and output interface 310 thataccommodates connection to a variety of other devices.

According to the present invention, in the case that a subscriber issubscribed in a wired phone service using a wired and wirelessinterconnecting apparatus, there is provided portability in the wiredphone service wherein, when the wired phone terminal is called, the callcan be simultaneously terminated in a private mobile communicationnetwork operated by a wired and wireless interconnecting apparatusthrough an existing wired phone service and an assigned wirelessterminal.

Also, as a virtual wired phone number in a form of a general wired phoneservice phone number is operated, it is possible to receive an telephonecalled by an external subscriber using a wired phone number through auser's wireless terminal, and as a caller ID is transmitted as a virtualwired phone number when the external subscriber is called, an effect canbe obtained that the user has a wired phone terminal in view of theexternal subscriber on the state that the wired phone terminal is notinstalled. Moreover, when the external subscriber makes a call to asubscriber's wireless terminal, the phone service can be providedaccording to an accounting rate of the wired phone service.

Also, even when a subscriber simultaneously uses the wired phone andwireless phone services, an internal subscriber may not be charged sothat a burden due to a dual charge can be reduced.

What is claimed is:
 1. A system for operating wired and wireless phoneservices interconnectively, the system comprising: a private basestation controller (pBSC) which is connected to a public switchedtelephone network (PSTN) and a private base station transceiver system(pBTS), and which provides a mobile communication service to a pluralityof mobile communication terminals; and a group exchange which isconnected to the PSTN, and which assigns a respective virtual wiredphone number to each respective mobile communication terminal existingin a mobile zone as a management region of the pBTS, and which providesa public wired phone service to said each respective mobilecommunication terminal using the respective virtual wired phone number,and which provides a wired phone service to a wired terminal existingoutside the mobile zone, wherein, when receiving a request for anoutgoing service from an internal mobile communication terminal, thepBSC checks a service type identifier defining which one of a privatenetwork service and a public network service the internal mobilecommunication terminal requests, and the group exchange changes a calleridentification (CID) into the respective virtual wired phone numberassigned to the internal mobile communication terminal, and calls acalled terminal via the PSTN.
 2. The system according to claim 1,wherein the group exchange calls the mobile communication terminalcorresponding to the respective virtual wired phone number whenreceiving an incoming call containing the respective virtual wired phonenumber.
 3. The system according to claim 1, wherein the group exchangecomprises a database for storing, for each arbitrary wired phone number,information indicating whether or not said each arbitrary wired phonenumber is a virtual phone number and information about whether or not amultiple terminating service is registered.
 4. The system according toclaim 3, wherein the group exchange simultaneously calls a wiredterminal corresponding to a wired phone number and a mobilecommunication terminal when the wired phone number is registered withthe multiple terminating service and is called.
 5. The system accordingto claim 1, wherein the pBSC comprises a database for storing said eachrespective virtual wired phone number assigned to said each respectivemobile communication terminal and a mobile identifier number (MIN) ofsaid each mobile communication terminal to which said each respectivevirtual wired phone number is assigned.
 6. The system according to claim1, wherein the group exchange is connected to the PSTN through No. 7signaling.
 7. A method for operating wired and wireless phone servicesinterconnectively, the method comprising the steps of: assigning, by agroup exchange, a respective virtual wired phone number to eachrespective one of a plurality of mobile communication terminals existingin a mobile zone as a management region of a private base stationtransceiver system (pBTS); providing, by the group exchange, a wiredphone service to a wired terminal existing outside the mobile zone;providing, by the group exchange, a public wired phone service to themobile communication terminals by linking the respective virtual wiredphone numbers with respective mobile identifier numbers (MINs) of themobile communication terminals; and when the group exchange receives arequest for an outgoing service from an internal mobile communicationterminal, changing, by the group exchange, a caller identification (CID)into the respective virtual wired phone number assigned to the internalmobile communication terminal, and calling a called terminal via apublic switched telephone network (PSTN); simultaneously calling, by thegroup exchange, a wired terminal corresponding to a wired phone numberand a mobile communication terminal when the wired phone number isregistered with the multiple terminating service are called; andrerouting associated with the simultaneously calling, by the groupexchange, an incoming call to one of a public switched telephone network(PSTN) and a public land mobile network (PLMN) when the called wiredterminal and the mobile communication terminal make no response.
 8. Themethod according to claim 7, wherein in the step of providing the publicwired phone service, when the group exchange receives an incoming callcontaining a virtual wired phone number through a public switchedtelephone network (PSTN), the group exchange calls the respective mobilecommunication terminal to which the virtual wired phone number isassigned.
 9. The method according to claim 7, further comprising thestep of, when a private base station controller (pBSC) receives arequest for an internal service from an outgoing mobile communicationterminal, checking, by the pBSC, a service type identifier definingwhich one of a private network service and a public network service theinternal mobile communication terminal requests.
 10. The methodaccording to claim 9, further comprising the steps of: relaying, by thepBSC, an outgoing call to the group exchange when the internal mobilecommunication terminal requests the private network service; andrelaying, by the pBSC, the outgoing call to a public land mobile network(PLMN) when the internal mobile communication terminal requests thepublic network service.
 11. A system for operating wired and wirelessphone services interconnectively, the system comprising: a private basestation controller (pBSC) which is connected to a public switchedtelephone network (PSTN) and a private base station transceiver system(pBTS), and which provides a mobile communication service to a pluralityof mobile communication terminals; and a group exchange which isconnected to the PSTN, and which assigns a respective virtual wiredphone number to each respective mobile communication terminal existingin a mobile zone as a management region of the pBTS, and which providesa public wired phone service to said each respective mobilecommunication terminal using the respective virtual wired phone number,and which provides a wired phone service to a wired terminal existingoutside the mobile zone, wherein, when receiving a request for anoutgoing service from an internal mobile communication terminal, thepBSC checks a service type identifier defining which one of a privatenetwork service and a public network service the internal mobilecommunication terminal requests and the group exchange changes a calleridentification (CID) into the respective virtual wired phone numberassigned to the internal mobile communication terminal, and calls acalled terminal via the PSTN, and wherein the pBSC relays an outgoingcall to the group exchange when the internal mobile communicationterminal requests the private network service, and relays the outgoingcall to a public land mobile network (PLMN) when the internal mobilecommunication terminal requests the public network service.